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# 包含视图
现在我们已经建立了基础的继承结构,接下来我们可以使用更多的技巧了.
***@include***
如果我们在一个视图内想嵌入另外的视图怎么做呢?也许我们有个"注册按钮"想在整个站点内使用,或许我们想在我们每次使用这个按钮的时候都可以进行自定义呢?请看示例4-10
{% code title="Example 4-10. Including view partials with @include" %}
```
Here's why you should sign up for our app:
It's Great.
@include('sign-up-button', ['text' => 'See just how great it is'])
{{ $text }}
```
{% endcode %}
@include引入视图并可以给它传递数据,注意你不但可以通过@include第二个参数显示的传递数据,也可以通过包含可用变量传递(例如$pageName)，但是为了清晰,我建议总是显示的传递变量.
你也可以使用@includeIf,@includeWhen,以及@includeFirst指令,如例子4-11所示
{% code title="Example 4-11. Conditionally including views" %}
```php
{{-- Include a view if it exists --}}
@includeIf('sidebars.admin', ['some' => 'data'])
{{-- Include a view if a passed variable is truth-y --}}
@includeWhen($user->isAdmin(), 'sidebars.admin', ['some' => 'data'])
{{-- Include the first view that exists from a given array of views --}}
@includeFirst(['customs.header', 'header'], ['some' => 'data'])
```
{% endcode %}
***@each***
有些情况你希望循环include某些模板,这就是@each要干的事.
假设我们有一个由模块组成的侧边栏，我们希望包含多个模块，每个模块都有不同的标题。请看示例4-12
{% code title="Example 4-12. Using view partials in a loop with @each" %}
```php